Author:
BLASCO BEATRIZ,AVENDAÑO CARLOS,CAVADA CARMEN
Abstract
The Cavalieri method and the optical fractionator
were employed to estimate the volume and neuron numbers,
respectively, of the dorsal lateral geniculate nucleus
(dLGN) in seven adult male pigtail monkeys (Macaca
nemestrina). Unbiased estimates were selectively obtained
for the parvocellular (P), magnocellular (M), and interlaminar
plus superficial (I + S) layers of the nucleus. The dLGN
had a mean volume of 56.5 mm3, and contained
on average 1.79 million neurons. The P layers contributed
64% of the volume and 83% of the neurons in the dLGN; the
corresponding proportions for the other layers were 13%
and 9% (M), and 23% and 8% (I + S). Interindividual variability
was large for neuron counts, which varied within a two-fold
range, and lower for volume estimates. Since no published
data are available for the pigtail dLGN, the present results
are compared with quantitative studies of the dLGN in other
macaque species, placing special emphasis in the discussion
of the methodologies used.
Publisher
Cambridge University Press (CUP)
Subject
Sensory Systems,Physiology
Cited by
32 articles.
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